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SubjectRe: 2.5.62 Oops during nfs mount
Trond Myklebust wrote:

> >>>>> " " == Maneesh Soni <maneesh@in.ibm.com> writes:
>
> > Following patch should fix this problem. I think Trond can say
> > whether it is correct or not. In my opinion rpc_rmdir should
> > test for negative dentry after lookup_hash() returns, like
> > rpc_unlink() does.
>
> No. You are 'fixing' a symptom of a more fundamental
> bug/misunderstanding: lookup_path("") returns no error, and is
> sometimes causing us to remove the top level directory.
> See the 2-line patch I posted yesterday. It should fix the Oops you
> are reporting.

Thanks Trond, your patch below indeed fixed the Oops I reported:

--- linux-2.5.61-up/net/sunrpc/clnt.c.orig 2003-02-15
21:05:02.000000000 +0100
+++ linux-2.5.61-up/net/sunrpc/clnt.c 2003-02-17 19:39:20.000000000
+0100
@@ -208,7 +208,8 @@
rpcauth_destroy(clnt->cl_auth);
clnt->cl_auth = NULL;
}
- rpc_rmdir(clnt->cl_pathname);
+ if (clnt->cl_pathname[0])
+ rpc_rmdir(clnt->cl_pathname);
if (clnt->cl_xprt) {
xprt_destroy(clnt->cl_xprt);
clnt->cl_xprt = NULL;
-
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